CN106585157A - Method for inhibiting formation of coffee ring in printing process and solid thin film - Google Patents
Method for inhibiting formation of coffee ring in printing process and solid thin film Download PDFInfo
- Publication number
- CN106585157A CN106585157A CN201611016434.6A CN201611016434A CN106585157A CN 106585157 A CN106585157 A CN 106585157A CN 201611016434 A CN201611016434 A CN 201611016434A CN 106585157 A CN106585157 A CN 106585157A
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- China
- Prior art keywords
- ink
- film
- solvent
- typography
- coffee ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/009—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using thermal means, e.g. infrared radiation, heat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2365/00—Characterised by the use of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Derivatives of such polymers
- C08J2365/04—Polyxylylenes
Abstract
The invention discloses a method for inhibiting formation of a coffee ring in the printing process and a solid thin film. The method comprises the following steps: A, depositing a functional ink on a substrate by use of a printing technology to form an ink liquid film; B, reducing the temperature to enable the ink liquid film to be cured into an ink solid film; C, removing part of a solvent in the ink solid film through vacuum sublimation treatment; D, raising the temperature to room temperature, and enabling the residual solvent to redissolve solute so as to form a thick semi-cured ink film layer; and E, removing the residual solvent in the semi-cured ink film layer to form a solid thin film. After the liquid film is deposited by ink jet printing, the sublimation process is combined with the heating or vacuum process to remove the solvent, so that formation of the 'coffee ring' in the printing process is inhibited, meanwhile, an even and compact film layer structure is formed, follow-up progressing of the printing process is facilitated, the quality of the film layer prepared by the printing process is improved, and the performance of display devices is also improved finally.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of method for suppressing typography coffee ring to be formed and solid
Body thin film.
Background technology
In the present age of information-intensive society, further strengthening as the importance of the display of visual information transmission medium, be
Leading position will be occupied in future, display is just towards lighter, thinner, more low energy consumption, more inexpensive and more preferable picture quality
Trend development.
OLED due to self-luminous, reaction is fast, visual angle is wide, brightness is high, it is frivolous the advantages of, become current Display Technique exploitation
Focus.The manufacture method of OLED mainly includes prepared by vacuum evaporation or wet method.Vacuum evaporation is limited to cost and size, it is difficult to
Realize large area volume production, and the ink jet printing in prepared by wet method, it is considered to be most probable realizes OLED large area, low cost production
Approach.However, in the processing procedure of ink jet printing, when film layer is dried, as the inhomogeneities of solvent volatilization are easy to cause
" coffee ring " phenomenon, causes thin film intermediate thin, edge thick, has a strong impact on the performance and display effect of device.
Chinese patent（Publication number CN105467682A）A kind of method for suppressing " coffee ring " to be formed is disclosed, by low temperature
Liquid film is solidified, subsequently distillation removes solvent, prevents the flowing of internal solute, such that it is able to the shape for effectively suppressing " coffee ring "
Into.But in the method, due to adopting solidification distillation, after solvent distillation, the solute for staying is due to being maintained at shape residing in liquid film
State, therefore the film layer for being formed can be unfavorable for subsequent technique and is unfavorable for retainer member performance than more loose, coarse, therefore, it is existing
There is technology to be improved and develop.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide one kind can suppress typography coffee annular
Into method and solid film, it is intended to solve that the film layer that existing typography formed is loose, coarse cause to be unfavorable for follow-up work
The problem of skill and retainer member performance.
Technical scheme is as follows：
A kind of method that coffee ring is formed in suppression typography, it is characterised in that including step：
A, on substrate using typography deposit functional ink, formed ink liquid film；
B, reduction temperature cause ink liquid film to be cured as the solid film of ink；
C, the partial solvent processed by vacuum sublimation in the solid film of removal ink；
D, room temperature is warming up to, makes the solvent of residual dissolve again solute, form sticky semi-solid preparation ink film layer；
E, the residual solvent removed in semi-solid preparation ink film layer, form solid film.
The method that coffee ring is formed in described suppression typography, it is characterised in that in step B, it is cooled to 0 ~-
60℃。
The method that coffee ring is formed in described suppression typography, it is characterised in that the solvent in functional ink is included
Benzene, dichloroethanes, trichloroethane, dichloromethane, chloroform, tetrahydrofuran, chlorobenzene, dimethylbenzene, dichloro-benzenes, DMSO, second two
One or more in alcohol and octane.
The method that coffee ring is formed in described suppression typography, it is characterised in that by mass percentage, the step
In rapid C, solvent removal amount is 60% ~ 95%.
The method that coffee ring is formed in described suppression typography, it is characterised in that in step C, vacuum is
0.1~100 MPa。
The method that coffee ring is formed in described suppression typography, it is characterised in that in step E, to semi-solid preparation
Ink film layer heated or evacuation mode, remove residual solvent.
In described suppression typography coffee ring formed method, it is characterised in that the substrate be flexible base board or
Rigid substrates.
A kind of solid film, wherein, made using the method as above described in any one.
Beneficial effect：The present invention is by, after using typography deposited ink liquid film, being solidified using low temperature, preventing solute
Flowing, subsequently adopts distillation means, removes most of solvent, and room temperature of then rising again now forms sticky semi-solid preparation ink
Film layer, internal solute only have small size mobility, subsequently remove residual solvent, due to solute mobility it is weaker, it is impossible to it is long away from
" coffee ring " is formed from film layer edge is flow to, while the mobility by a small margin of solute can be with spontaneous contracting during solvent seasoning
Combinate form is into smooth, fine and close thin film.
Description of the drawings
Fig. 1 is a kind of flow chart of the method preferred embodiment for suppressing typography coffee ring to be formed of the present invention.
Fig. 2 to Fig. 5 is a kind of artwork of the method for suppressing typography coffee ring to be formed of the present invention.
Specific embodiment
The present invention provides a kind of method for suppressing typography coffee ring to be formed and solid film, to make the mesh of the present invention
, technical scheme and effect it is clearer, clear and definite, the present invention is described in more detail below.It should be appreciated that described herein
Specific embodiment only to explain the present invention, be not intended to limit the present invention.
Fig. 1 is referred to, Fig. 1 is a kind of stream of the method preferred embodiment for suppressing coffee ring formation in typography of the present invention
Cheng Tu, as illustrated, which includes step：
S1, on substrate using typography deposit functional ink, formed ink liquid film；
S2, reduction temperature cause ink liquid film to be cured as the solid film of ink；
S3, the partial solvent processed by vacuum sublimation in the solid film of removal ink；
S4, room temperature is warming up to, makes the solvent of residual dissolve again solute, form sticky semi-solid preparation ink film layer；
S5, the residual solvent removed in semi-solid preparation ink film layer, form solid film.
The present invention is by, after liquid film is deposited using typography, combining heating using sublimation process or vacuum technology being removed
Solvent, suppresses the formation of " coffee ring " in typography, while forming smooth, fine and close film layer structure, is conducive to typography
Subsequent technique carry out, improve typography prepare film quality and device performance.
In step S1, as shown in Fig. 2 functional ink is deposited using typography on the substrate 10, form ink
Liquid film 13；Solvent in functional ink includes benzene, dichloroethanes, trichloroethane, dichloromethane, chloroform, tetrahydrofuran, chlorine
One or more in benzene, dimethylbenzene, dichloro-benzenes, DMSO, ethylene glycol, octane.In this step, picture can be first made on the substrate 10
Plain bank 11 and pixel electrode 12, then make ink liquid film 13 above pixel electrode 12.Described substrate 10 can be firm
Property substrate, such as glass substrate, or flexible base board, such as pet substrate.
In step S2, as shown in figure 3, reducing below the solvent fusing point of temperature to ink liquid film 13 so that ink
Liquid film 13 solidifies, and forms the solid film 14 of ink；Specific cooling extent, visual solvent are different and different, generally speaking, cooling
To 0 ~ -60 DEG C.
In step S3, the most of solvent removed in the solid film 14 of ink is processed by vacuum sublimation, by quality hundred
Divide than meter, solvent removal amount accounts for the 60% ~ 95% of total solvent quality for the solvent removed in 60% ~ 95%, i.e. this step.Take out in addition
The vacuum of vacuum is 0.1 ~ 100 MPa, more effectively to remove most of solvent.
In step S4, as shown in figure 4, being warming up to room temperature, the solvent of residual is made to dissolve again solute, shape
Into sticky semi-solid preparation ink film layer 15；
In step S5, as shown in figure 5, removing the residual solvent in semi-solid preparation ink film layer 15, solid film 16 is formed.
Specifically semi-solid preparation ink film layer 15 can be heated or evacuation, be removed residual solvent, during solvent is removed, due to
The flowing of solute is limited to, therefore effectively inhibits the formation of " coffee ring ", and the flowing of the local short range of solute in turn ensure that
The smooth and compactness of film layer, as shown in figure 5, smooth, fine and close solid film 16 may finally be obtained.
One instantiation is as follows：
Functional ink composition：Count in mass ratio, including the solvent of 0.6% P-PPV and 94.4%, wherein solvent composition is as follows：Chlorobenzene
With 3,4- dimethylanisoles, and the two volume ratio it is：Chlorobenzene and 3,4- dimethylanisole=80:20.Preparation process is as follows：
1st, functional ink is deposited using typography in the pixel hole of substrate, forms ink liquid film；
2nd, temperature is reduced to -50 DEG C（- 45 DEG C of the molten point of chlorobenzene）So that ink liquid film solidifies, and forms the solid film of ink；
3rd, the ink of solidification solid film is placed under vacuum, vacuum 10Pa, distillation remove 70%（Count by volume）Chlorobenzene；
4th, ink solid film is returned and warms to room temperature to form semi-solid preparation ink film layer；
5th, semi-solid preparation ink film layer evacuation is removed into residual solvent, forms fine and close solid film.
In sum, the present invention is by, after using typography deposited ink liquid film, being solidified using low temperature, preventing solute
Flowing, subsequently adopts distillation means, removes most of solvent, and room temperature of then rising again now forms sticky semi-solid preparation ink
Film layer, internal solute only have small size mobility, subsequently remove residual solvent, due to solute mobility it is weaker, it is impossible to it is long away from
" coffee ring " is formed from film layer edge is flow to, while the mobility by a small margin of solute can be with spontaneous contracting during solvent seasoning
Combinate form is into smooth, fine and close thin film.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, and for those of ordinary skills, can
To be improved according to the above description or be converted, all these modifications and variations should all belong to the guarantor of claims of the present invention
Shield scope.
Claims (8)
1. a kind of method that coffee ring is formed in suppression typography, it is characterised in that including step：
A, on substrate using typography deposit functional ink, formed ink liquid film；
B, reduction temperature cause ink liquid film to be cured as the solid film of ink；
C, the partial solvent processed by vacuum sublimation in the solid film of removal ink；
D, room temperature is warming up to, makes the solvent of residual dissolve again solute, form sticky semi-solid preparation ink film layer；
E, the residual solvent removed in semi-solid preparation ink film layer, form solid film.
2. the method that coffee ring is formed in suppression typography according to claim 1, it is characterised in that step B
In, it is cooled to 0 ~ -60 DEG C.
3. the method that coffee ring is formed in suppression typography according to claim 1, it is characterised in that in functional ink
Solvent comprising benzene, dichloroethanes, trichloroethane, dichloromethane, chloroform, tetrahydrofuran, chlorobenzene, dimethylbenzene, dichloro-benzenes,
One or more in DMSO, ethylene glycol and octane.
4. the method that coffee ring is formed in suppression typography according to claim 1, it is characterised in that by quality percentage
Than meter, in step C, solvent removal amount is 60% ~ 95%.
5. the method that coffee ring is formed in suppression typography according to claim 1, it is characterised in that step C
In, vacuum is 0.1 ~ 100 MPa.
6. the method that coffee ring is formed in suppression typography according to claim 1, it is characterised in that step E
In, semi-solid preparation ink film layer is heated or evacuation mode, remove residual solvent.
7. the method for suppressing coffee ring in typography to be formed according to claim 1, it is characterised in that the substrate is
Flexible base board or rigid substrates.
8. a kind of solid film, it is characterised in that made using the method as described in any one of claim 1 ~ 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611016434.6A CN106585157B (en) | 2016-11-18 | 2016-11-18 | Method capable of inhibiting formation of printing process coffee ring and solid film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611016434.6A CN106585157B (en) | 2016-11-18 | 2016-11-18 | Method capable of inhibiting formation of printing process coffee ring and solid film |
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| Publication Number | Publication Date |
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| CN106585157A true CN106585157A (en) | 2017-04-26 |
| CN106585157B CN106585157B (en) | 2020-02-07 |
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| CN201611016434.6A Active CN106585157B (en) | 2016-11-18 | 2016-11-18 | Method capable of inhibiting formation of printing process coffee ring and solid film |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108001062A (en) * | 2017-12-05 | 2018-05-08 | 华南理工大学 | It is a kind of to repair the excessive method of large area high uniformity inkjet printing film surface fluctuating |
| WO2018201681A1 (en) * | 2017-05-03 | 2018-11-08 | Boe Technology Group Co., Ltd. | Method of fabricating film, method of fabricating array substrate, and display panel |
| CN108944103A (en) * | 2017-11-14 | 2018-12-07 | 广东聚华印刷显示技术有限公司 | Inkjet printing methods |
| CN109233441A (en) * | 2018-07-13 | 2019-01-18 | 苏州星烁纳米科技有限公司 | Composition for ink, nano-particular film and opto-electronic device |
| CN109749507A (en) * | 2019-01-23 | 2019-05-14 | 纳晶科技股份有限公司 | Functional layer ink, the preparation method of photoelectric device functional layer and photoelectric device |
| CN109935738A (en) * | 2017-12-15 | 2019-06-25 | Tcl集团股份有限公司 | A kind of post-processing approach of QLED device |
| CN111384307A (en) * | 2018-12-29 | 2020-07-07 | Tcl集团股份有限公司 | Preparation method of quantum dot light-emitting diode |
| CN112485252A (en) * | 2020-10-13 | 2021-03-12 | 中国农业大学 | Control method and device for inhibiting coffee ring in preparation process of flexible sensor |
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| JP2006281189A (en) * | 2005-04-04 | 2006-10-19 | Mikuni Denshi Kk | Ink jet coating solution and drying method |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018201681A1 (en) * | 2017-05-03 | 2018-11-08 | Boe Technology Group Co., Ltd. | Method of fabricating film, method of fabricating array substrate, and display panel |
| CN108807670A (en) * | 2017-05-03 | 2018-11-13 | 京东方科技集团股份有限公司 | A kind of preparation method of film, the preparation method of array substrate and display panel |
| US10600850B2 (en) | 2017-05-03 | 2020-03-24 | Boe Technology Group Co., Ltd. | Method of fabricating film, method of fabricating array substrate, and display panel |
| CN108944103A (en) * | 2017-11-14 | 2018-12-07 | 广东聚华印刷显示技术有限公司 | Inkjet printing methods |
| CN108001062A (en) * | 2017-12-05 | 2018-05-08 | 华南理工大学 | It is a kind of to repair the excessive method of large area high uniformity inkjet printing film surface fluctuating |
| CN109935738A (en) * | 2017-12-15 | 2019-06-25 | Tcl集团股份有限公司 | A kind of post-processing approach of QLED device |
| CN109935738B (en) * | 2017-12-15 | 2020-08-18 | Tcl科技集团股份有限公司 | Post-processing method of QLED device |
| CN109233441A (en) * | 2018-07-13 | 2019-01-18 | 苏州星烁纳米科技有限公司 | Composition for ink, nano-particular film and opto-electronic device |
| CN111384307A (en) * | 2018-12-29 | 2020-07-07 | Tcl集团股份有限公司 | Preparation method of quantum dot light-emitting diode |
| CN111384307B (en) * | 2018-12-29 | 2021-04-09 | Tcl科技集团股份有限公司 | Preparation method of quantum dot light-emitting diode |
| US11889745B2 (en) | 2018-12-29 | 2024-01-30 | Tcl Technology Group Corporation | QLED manufacturing method |
| CN109749507A (en) * | 2019-01-23 | 2019-05-14 | 纳晶科技股份有限公司 | Functional layer ink, the preparation method of photoelectric device functional layer and photoelectric device |
| CN109749507B (en) * | 2019-01-23 | 2021-11-19 | 纳晶科技股份有限公司 | Functional layer ink, preparation method of functional layer of photoelectric device and photoelectric device |
| CN112485252A (en) * | 2020-10-13 | 2021-03-12 | 中国农业大学 | Control method and device for inhibiting coffee ring in preparation process of flexible sensor |
| CN112485252B (en) * | 2020-10-13 | 2022-02-15 | 中国农业大学 | Control method and device for inhibiting coffee ring in preparation process of flexible sensor |
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